Section 7 DMA Controller (DMAC)
Rev. 3.00 Mar. 14, 2006 Page 151 of 804
REJ09B0104-0300
7.2.7
DMA Address Control Register (DACR)
DACR specifies the operating mode and transfer method.
31
AMS
0
R/W
30
DIRS
0
R/W
29
—
0
R
28
—
0
R
27
—
0
R
24
ARS0
0
R/W
26
RPTIE
0
R/W
25
ARS1
0
R/W
Bit
Bit Name
Initial Value
R/W
23
—
0
R
22
—
0
R
21
SAT1
0
R/W
20
SAT0
0
R/W
19
—
0
R
16
DAT0
0
R/W
18
—
0
R
17
DAT1
0
R/W
Bit
Bit Name
Initial Value
R/W
15
SARIE
0
R/W
14
—
0
R
13
—
0
R
12
SARA4
0
R/W
11
SARA3
0
R/W
8
SARA0
0
R/W
10
SARA2
0
R/W
9
SARA1
0
R/W
Bit
Bit Name
Initial Value
R/W
7
DARIE
0
R/W
6
—
0
R
5
—
0
R
4
DARA4
0
R/W
3
DARA3
0
R/W
0
DARA0
0
R/W
2
DARA2
0
R/W
1
DARA1
0
R/W
Bit
Bit Name
Initial Value
R/W
Bit Bit
Name
Initial
Value R/W Description
31 AMS 0
R/W
Address
Mode
Select
Selects address mode from single or dual address
mode. In single address mode, the
DACK
pin is enabled
according to the DACKE bit.
0: Dual address mode
1: Single address mode
30
DIRS
0
R/W
Single Address Direction Select
Specifies the data transfer direction in single address
mode. This bit s ignored in dual address mode.
0: Specifies DSAR as source address
1: Specifies DDAR as destination address
29 to 27
0 R/W
Reserved
These are read-only bits and cannot be modified.
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Содержание H8SX series
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